Air conditioner



FIG. 1 is a bottom, front, and right side perspective view of an air conditioner showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged vertical cross-sectional view thereof taken in the direction of line 8—8 in FIG. 2, the broken-line disclosure of internal elements being understood to be part of the article in which the claimed design is embodied, but which forms no part of the claimed design. 

The ornamental design for an air conditioner, as shown and described. 